Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4P2

H. Pfau, R. Daou, S. Friedemann, S. Karbassi, S. Ghannadzadeh, R. Küchler, S. Hamann, A. Steppke, D. Sun, M. König, A. P. Mackenzie, K. Kliemt, C. Krellner, and M. Brando
Phys. Rev. Lett. 119, 126402 – Published 21 September 2017

Abstract

A ferromagnetic quantum critical point is thought not to exist in two- and three-dimensional metallic systems yet is realized in the Kondo lattice compound YbNi4(P,As)2, possibly due to its one-dimensionality. It is crucial to investigate the dimensionality of the Fermi surface of YbNi4P2 experimentally, but common probes such as angle-resolved photoemission spectroscopy and quantum oscillation measurements are lacking. Here, we study the magnetic-field dependence of transport and thermodynamic properties of YbNi4P2. The Kondo effect is continuously suppressed, and additionally we identify nine Lifshitz transitions between 0.4 and 18 T. We analyze the transport coefficients in detail and identify the type of Lifshitz transitions as neck or void type to gain information on the Fermi surface of YbNi4P2. The large number of Lifshitz transitions observed within this small energy window is unprecedented and results from the particular flat renormalized band structure with strong 4f-electron character shaped by the Kondo lattice effect.

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  • Received 15 December 2016

DOI:https://doi.org/10.1103/PhysRevLett.119.126402

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

H. Pfau1,2, R. Daou3, S. Friedemann4, S. Karbassi4, S. Ghannadzadeh5, R. Küchler1, S. Hamann1, A. Steppke1, D. Sun1, M. König1, A. P. Mackenzie1,6, K. Kliemt7, C. Krellner7, and M. Brando1

  • 1Max Planck Institute for Chemical Physics of Solids, D-01187 Dresden, Germany
  • 2Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
  • 3Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 14000 Caen, France
  • 4HH Wills Laboratory, University of Bristol, BS8 1TL Bristol, United Kingdom
  • 5High Field Magnet Laboratory, University of Nijmegen, 6525 ED Nijmegen, Netherlands
  • 6Scottish Universities Physics Alliance (SUPA), School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS, United Kingdom
  • 7Physikalisches Institut, Johann Wolfgang Goethe-Universität, D-60438 Frankfurt am Main, Germany

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Issue

Vol. 119, Iss. 12 — 22 September 2017

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